Will do what I can. Unfortunately, this is huge file will a lot of layers, many of which I do not know much about. I am hoping after my current project with this is finished that I can turn cleaning the drawing into a freelance project.
It has elements that have been imported from Rhino, AutoCAD, Sketchup, Solidworks, etc all drawn by different people over the course of a couple decades with no real file maintenance along the way. Each new drawing added its own layers and classes. Turning these off one by one has helped some, but it is still clunky. Most of it was done by people who don't know much about drawing other than making lines. Chunks of it have become 3D polys and NURBS even though it is strictly meant to be a ground plan. Parts of it were models that got dropped in because someone was too lazy to flatten to a plan view, but when they dropped it into place they also broke it down into all its constituent edges, so I cannot just manipulate the larger model.
It is a mess.
I appreciate your help.